parallel-launcher/src/core/memory-stream.hpp

#include <QBuffer>

class QtMemoryStream : public QBuffer {

	private:
	const int m_resizeFactor;

	public:
	inline QtMemoryStream( int initialCapacity = 1023, int resizeFactor = 4 ) : QBuffer(), m_resizeFactor( resizeFactor ) {
		buffer().reserve( initialCapacity );
		open( QIODevice::ReadWrite );
	}

	protected:
	virtual qint64 writeData( const char *data, qint64 len ) override {
		if( len + buffer().size() > (qint64)buffer().capacity() ) {
			buffer().reserve( ((buffer().capacity() + 1) * m_resizeFactor) - 1 );
		}

		return QBuffer::writeData( data, len );
	}

};